Valve mechanism for internal-combustion engines.



W. F. KOKEN & A. J. PICHL.

VALVE MECHANISM FOR INTERNAL COMBUSTIQN ENGINES. AP'PLlcATloN FILED JAN. 19. 1914.

LLLS. Patented Nov. 23, 1915.

2 SHEETS-SHEET l.

MY@ l y $3; w WALTER f; /famsN ,6 A/vro/v d. P/cf/L,

W. F. KOKEN 6I A. .l. PICHL.

VALVE MECHANISM FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED 1AN.I9. I9I4.

1.11923. Patented Nov. 23, 1915.

2 SHEETS-SHEET 2.

coLuMBlA PLANDGRAPH c0,.w^sHINcITON. D. c.

`WALTER `1"'. KOKEN ANTON J'. PICHL, OF MISSOURI.

VALVE Mnorielvslvr ron INTERNAL-consomment ENGINES.

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Application led January 19, 1914.' Serial V15]"0. 8213,895,

To @ZZ whom #may Concern.' i Be it known that we, WALTER F. KOKEN and ANTON JPIjCHML, citizens of the United States, residingy at "the city of St. Louis, State vof `ldissouri, have invented certain new and useful improvements inrValve'lli/lecha.- nisms for internal-CombustionEngines, of which the following is a specification,

rlhis invention relates to internal combus-v tion engines of the type in which slide valves are ,employed forcontrolling the inlet and exhaust of the gases to from the cylinders. 'i

rlhe main object ofour present invention is to provide a multi-cylinder, four-cycle internal combustion engine, in which two reciprocating valve members v:arrtinged by side are employed for controllingthe 1n` let and exhaust of the gases to and from all of the cylinders of the engine.

Another object is to provide an engine of the type described, in which each valve member consists of a flat plate. And still another object is to provide an engine of the construction above described, in which one of the reciprocating valve members controls the inlet ports of certain cylinders and the exhaust ports of the remaining cylinders,

and the other valve member Controls the ex! haust ports and inlet ports, respectively, of the cylinders that are not controlled by the valve member iirstreferred to.

Figure l of the drawings is a top plan view of our improved engine partly in section with the top plate removed; Fig. 2 is a longitudinal sectional view on the line 2 2, Fig. i; and Fig. 3 is a top plan view of the engine, with the cover removed to expose the reciprocating plates or valve members.

For the purpose of illustration an engine having four cylinders l, 2, 3, and Il, is depicted in the drawings, each cylinder having a piston (not shown) adapted to operate therein in the usual manner and, also, having an inlet port 5 and an exhaust port 6 preferably forward in its head, which ports register in vertical alinement with inlet and exhaust passages 7 and 8, respectively, in the cover 9. which is secured to the heads of the cylinders by bolts 10 or other suitable means. The walls of the passages 7 and 8 project upwardly into a water chamber l1 within the cover 9, and the top of this chamber is closed by a plate 12, which is @eterea to ma efe-ver by tela 13 er ether Specification of Letters. rEatent.

Patented Nev. as, lara.

suitable means. The inlet passages 7 are *connectedl with the branchesy of the mani- Afold '14, 4which has the usual connection with the carbureter, and the exhaust passages 8 are connected with the branches of the exhaust pipe 16;' The water-jacket 17, which surrounds the cylinders, is cOmniunicati'vely connected with the water chamber vIlin'the cover 9 in the usual manner by means of a pipe 18,`which` is preferably'located at oneend of the engine' to allow the water`which enters the`waterjacket 17 through theinle't pipe to pass into the waiter chamber 1l, from which it discharges through the outlet pipe.

l tn the engine herein shown communication'be'tween'ith'e 'inletports 5 and the' eX- haiist ports 6 of the cylinders and their respective inlet passages 7 and exhaust passages 8 in the cover 9 is established in proper sequence by means of plates 23 or valve members, which reciprocate horizontally upon the heads of the cylinder in a groove or valve chamber 24: in the bottom of the cover 9. .ln the case of a four-cylinder engine as illustrated in the drawings, two plates 23 are employed, the latter being arranged to reciprocate side by side so that one plate reciprocates over the inlet ports 5 of the cylinders l and i and the exhaust ports 6 of the cylinders 2 and 3 and the other plate reciprocates over 'the exhaust ports 6 of the cylinders l and i and the inlet ports 5 of the cylinders 2 and 3, and there being openings 25 in each plate for the purpose of establishing communication between the inlet ports 5 and exhaust ports 6 and their respective inlet passages 7 and ex haust passages 8 at the proper time. Each plate or valve member 23 is provided at one end with a block or enlarged portion 26, which reciprocates in an enlarged portion 27 of the groove 24 and has the inner end of an operating rod or bar 28 secured thereto by any suitable means. rlhe Vrods 28 are adapted to be connected to some suitable type of operating mechanism, not shown, which reciprocates the valve members backwardly and forwardly when the engine is in operation and thus causes said valve members to control the inlet and exhaust of the gases to and from the cylinders in proper seouence.

i We eIaim:

t.; .e matthew-finder, teur-cycle internal combustion engine provided'with a valve chamber that is common to all of the cylinders of the engine, the cylinders having ports that communicate With said Valve chamber, and two reciprocating elements arranged side by side in said chamber and.. Veach being provided with slide valve porcombustion engine, each cylinder of which is provided in its head with an inlet port and anexhaust port, Vand two plate-like valve members arranged side by side over the Vheads of the cylinders, one of which is pro- Vvided `with openings that are adapted to register with the inlet ports of certain cylinders and the exhaust ports of the remaining cylinders, andthe other member having Vopenings that register With the ports in the I I cylinders that are not controlled by the valve member V'lirst mentioned, said valve members reciprocating back and forth When the engine sin operation and operating to control the inlet and exhaust of the gases to and from the cylinders in proper sequence.

3. A multi-cylinder internal combustion engine, each cylinder of which has an inlet port and an exhaust port formed in its head, a cover having inlet and exhaust passage- Ways that coperate with the ports in the cylinders and also being provided with a. valve chamber that is common to all of the cylinders, and a pair of positively-operated reciprocating valve members arranged side by side in saidvalve chamber, and each of Which is provided with means for controlling the inlet of the gases to certain cylinders and the exhaust from the remaining cylinders. y

In testimony whereof We hereunto allix our signatures in the presence of two Witnesses.

WALTER F. KOKEN. ANTON J. PICHL.

Vitnesses:

LEWIS E. MOORE, JNO. B. HEADE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

